Terra Sigillata Ball Clay OM4

Ball Clay Om4 Terra Sigillata is a very refined clay slip, it is usually polished to a high sheen and low-fired. 

Apply 3-8 flowing coats to leather hard or dry, smooth, clay. Allow to dry and polish with a soft cloth or chamois.

Fire to any temperature you like but the shine is best around Cone 017 (1450F) to Cone 06 (1820f). May Be used on any clay at any temp, BUT you must test it to see if it will do what you want.